Abstract: A knee replacement therapy unit comprising a base board configured to be attached with a chair; a winch having a crank, the winch attached to the base board and configured to wind a cable thereon; and a feed mechanism attached to the base board and configured to receive a cable therethrough from the winch.

Abstract: In an adjustable splint assembly having a lower strut and an upper strut, and having there between a pivotably mounted head portion defining a cam surface, the improvement comprising the lower strut being provided with a loading screw, a spring and a spring spacer with a graduated number series thereon all contained within an inner housing tube with a single window and wherein the lower strut has an outer lower leg tube provided with a series of windows, and depending on the length of the lower strut, the graduated number series will register with a window in said series of windows and the window of the inner housing tube so that the amount of tension being applied by the loading screw can be read at that particular window of the outer lower leg tube.